CN214789543U - Special-shaped silicone tube - Google Patents
Special-shaped silicone tube Download PDFInfo
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- CN214789543U CN214789543U CN202121251403.5U CN202121251403U CN214789543U CN 214789543 U CN214789543 U CN 214789543U CN 202121251403 U CN202121251403 U CN 202121251403U CN 214789543 U CN214789543 U CN 214789543U
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Abstract
The utility model relates to a special-shaped silicone tube, which comprises an inner adhesive layer, a reinforcing layer and an outer adhesive layer; the reinforcing layer is coated on the outer side of the inner rubber layer, the outer rubber layer is coated on the outer side of the reinforcing layer, and the inner rubber layer, the reinforcing layer and the outer rubber layer are compounded into a whole through vulcanization; the reinforcing layer is a single-layer tubular fabric or a composite structure containing multiple layers of tubular fabrics; the tubular fabric is woven by a knitting machine; the inner adhesive layer and the outer adhesive layer are made of silicon rubber; the tubular fabric is woven by aramid fiber yarns or polyester fiber yarns. The special-shaped silicone tube consists of the inner adhesive layer, the enhancement layer and the outer adhesive layer, the enhancement layer is tubular fabric or is formed by compounding multiple layers of tubular fabric, the material consumption is less on the premise of meeting the strength requirement, the leftover materials generated in the production process are less, and the material cost is low; the specific enhancement layer structure is convenient to bend the pipe body into a curve shape required by design before vulcanization, and the strength of the bent part meets the requirement.
Description
Technical Field
The utility model belongs to the technical field of the pipe fitting, specific saying so relates to a special-shaped silicone tube of making specific curve shape according to the designing requirement.
Background
The special-shaped silicone tube is a silicone tube with a specific curve shape in order to meet the specific installation space requirement, and is commonly used in automobiles. Silicone tubes used in automobiles are required to have excellent high and low temperature resistance, corrosion resistance, high pressure resistance, oil resistance and the like, and particularly, silicone tubes are required to have an air inlet system and an air outlet system of an automobile engine, an air inlet tube and an air outlet tube of a refrigerator and the like.
At present, a silicone tube used in the field of automobile refitting is formed by winding a rubber sheet and an enhancement layer adhered to the rubber sheet to form a tube body structure, and then is formed by vulcanization, so that the silicone tube has excellent high and low temperature resistance, high pressure resistance, corrosion resistance and other properties. The processing process comprises the following steps: rolling the silica gel into a film with a certain thickness, attaching a layer of reinforcing layer on one side or two sides of the film, cutting the film into a specified size, winding the film on a core mold to form a tube body structure, forming the rubber tube in a vulcanization mode, and finally performing water pressure depoling to obtain the finished product of the silica gel tube. However, in the above-mentioned processing, the film is usually wound around the core mold by manual means, which requires a long winding time and is complicated in operation, resulting in low production efficiency and high labor cost. In order to solve the problem, the applicant develops a rubber tube winding and processing device from the perspective of a production process and applies for a patent (CN 201820937782.5). when the device is used for producing a rubber tube, the long edge of the rubber sheet is placed on a rubber tube core mold, and a driving motor drives a rotating shaft to drive the rubber tube core mold to rotate through a three-jaw chuck, so that the automatic winding of the rubber sheet is realized, the production efficiency of the silicone tube can be effectively improved, and the labor cost is reduced. However, the whole winding process still needs manual operation to be completed, the requirement on the skill level of workers is high, and flaws can be generated by carelessness to influence the product quality. In addition, in order to meet the strength requirement of the silicone tube, the reinforcing layer in the prior art often needs to be wound for a large number of turns (see CN 201820949015.6), and the reinforcing layer has a large material consumption and a high cost.
Due to the problems, the special-shaped silicone tube product in the prior art has high cost, low capacity and high popularization difficulty, is still limited to be popular in the field of modified parts at present, and is difficult to enter the automobile matching market.
SUMMERY OF THE UTILITY MODEL
In order to overcome the defects in the prior art, the utility model provides a special-shaped silicone tube. The special-shaped silicone tube consists of the inner adhesive layer, the enhancement layer and the outer adhesive layer, the enhancement layer is tubular fabric or is formed by compounding multiple layers of tubular fabric, the material consumption is less on the premise of meeting the strength requirement, the leftover materials generated in the production process are less, and the material cost is low; in addition, the reinforcing layer is made of tubular fabric, and the pipe body is not required to be formed in a winding mode, so that the inner rubber layer and the outer rubber layer can be formed in an extrusion mode, the manufacturing is easier, and the cost control is facilitated; the specific reinforcing layer structure is convenient for bending the pipe body into a curve shape required by design before vulcanization, and the strength of the bent part meets the requirement; the product is prepared according to specific process steps, and has high production efficiency and low manufacturing cost.
In order to achieve the above purpose, the utility model provides a following technical scheme:
the special-shaped silicone tube comprises an inner adhesive layer, a reinforcing layer and an outer adhesive layer; the reinforcing layer is coated on the outer side of the inner rubber layer, the outer rubber layer is coated on the outer side of the reinforcing layer, and the inner rubber layer, the reinforcing layer and the outer rubber layer are compounded into a whole through vulcanization; the inner rubber layer and the outer rubber layer are tubular structures formed by extrusion, and the reinforcing layer is a single-layer tubular fabric or a composite structure containing multiple layers of tubular fabrics; the tubular fabric is woven by a knitting machine; the inner adhesive layer and the outer adhesive layer are made of silicon rubber; the tubular fabric is woven by aramid fiber yarns or polyester fiber yarns.
Compared with the prior art, the special-shaped silicone tube comprises an inner adhesive layer, an enhancement layer and an outer adhesive layer, wherein the enhancement layer is a single-layer tubular fabric or a composite structure containing multiple layers of tubular fabrics, and compared with a winding structure in the prior art, the special-shaped silicone tube has the advantages that the material consumption is less, the leftover materials generated in the production process are less, and the material cost is low; meanwhile, the reinforcing layer is made of tubular fabric or a composite structure of the tubular fabric, and the pipe body is not required to be wound and formed, so that the inner rubber layer and the outer rubber layer can be extruded and formed, the manufacturing is easier, and the labor cost is saved; in addition, the tubular fabric in the enhancement layer is of a knitted structure, the deformation amount allowed in the axial direction of the tube body is large, and the tube body is easy to bend, so that the bending allowed angle is large, the unvulcanized silicone tube is bent into a curve shape meeting specific design requirements before the vulcanization process, and the strength of the bent part is guaranteed to meet the requirements.
Preferably, in the special-shaped silicone tube, the reinforcing layer comprises a plurality of layers of tubular fabrics, and an extrusion-molded connecting adhesive layer is arranged between two adjacent layers of tubular fabrics. The enhancement layer contains the design of multilayer fabric, and body intensity is high, and the connection glue film between adjacent two-layer tubulose fabric can be fine connects into whole with it, long service life.
Preferably, in the special-shaped silicone tube, the reinforcing layer is a composite structure including two layers of tubular fabrics, the tubular fabric located on the inner side is woven by aramid fiber yarns, and the tubular fabric located on the outer side is woven by polyester fiber yarns. Aramid fiber intensity is higher, and polyester fiber elasticity is higher, and both make up the use, and the tubulose fabric in the outside is crooked easily, before getting into the vulcanization process, receives less resistance when bending into the curve shape that accords with specific design requirement with the silicone tube.
Preferably, in the special-shaped silicone tube, in the reinforcing layer, the weave density of the tubular fabric positioned on the outer side is smaller than that of the tubular fabric positioned on the inner side. The larger the weaving density of the tubular fabric is, the smaller the allowable bending range is, and the tubular fabric positioned on the outer side is less prone to bending, so that the allowable bending amplitude of the special-shaped silicone tube can be larger by arranging the weaving density of the tubular fabric positioned on the outer side to be smaller.
Preferably, in the above profiled silicone tube, the tubular fabric may be woven by a strand. Tubular fabrics are obtained by knitting with plied yarns, which can achieve higher strength than by knitting with single yarns.
Preferably, in the special-shaped silicone tube, the thickness of the outer adhesive layer is smaller than that of the inner adhesive layer. The thickness of the inner rubber layer is larger than that of the outer rubber layer, before entering a vulcanization process, the resistance received when the silicone tube is bent into a curve shape meeting specific design requirements is smaller, the inner rubber layer is thicker, and the reinforcing layer can be better protected, so that the rubber tube is not easy to damage.
As an optimization, in the special-shaped silicone tube, the inner adhesive layer is composed of a first inner adhesive layer and a second inner adhesive layer which are formed by extrusion, and the second inner adhesive layer is coated on the outer side of the first inner adhesive layer. The inner rubber layer is designed into a composite structure consisting of the first inner rubber layer and the second inner rubber layer, and compared with a single-layer structure, the rubber tube before vulcanization is easier to bend, so that the curve shape meeting the specific design requirement is easier to bend the silicone tube before entering the vulcanization process.
Preferably, in the special-shaped silicone tube, the thickness of the first inner adhesive layer is greater than that of the second inner adhesive layer. The thickness of the first inner rubber layer is larger than that of the second inner rubber layer, so that the rubber pipe before vulcanization can be further bent easily.
Preferably, in the special-shaped silicone tube, the outer adhesive layer is composed of a first outer adhesive layer and a second outer adhesive layer which are formed by extrusion, and the second outer adhesive layer is coated on the outer side of the first outer adhesive layer. Design into the composite construction who comprises first outer glue film and the outer glue film of second with outer glue film, compare single-layer structure, the rubber tube is crooked more easily before the vulcanization for before getting into the vulcanization process, bend into the curve shape that accords with specific design requirement with the silicone tube more easily.
Preferably, in the special-shaped silicone tube, the thickness of the first outer adhesive layer is greater than that of the second outer adhesive layer. The thickness of the first outer rubber layer is larger than that of the second outer rubber layer, so that the rubber tube before vulcanization can be further bent easily.
Drawings
Fig. 1 is a schematic view of the appearance structure of the special-shaped silicone tube in embodiment 1 of the present invention;
fig. 2 is a schematic cross-sectional structure diagram of the shaped silicone tube in fig. 1.
The labels in the figures are: 1-inner glue layer, 101-first inner glue layer, 102-second inner glue layer; 2-reinforcing layer, 201-connecting glue layer; 3-outer glue layer, 301-first outer glue layer, 302-second outer glue layer.
Detailed Description
The following description is made with reference to the accompanying drawings and examples, but not to be construed as limiting the invention. In the following examples, the details which are not described in detail are all common knowledge in the art.
Example (see fig. 1 and 2):
the special-shaped silicone tube comprises an inner adhesive layer 1, a reinforcing layer 2 and an outer adhesive layer 3; the reinforcing layer 2 is coated on the outer side of the inner rubber layer 1, the outer rubber layer 3 is coated on the outer side of the reinforcing layer 2, and the inner rubber layer 1, the reinforcing layer 2 and the outer rubber layer 3 are compounded into a whole through vulcanization; the inner rubber layer 1 and the outer rubber layer 3 are tubular structures formed by extrusion, and the reinforcing layer 2 is a single-layer tubular fabric or a composite structure containing multiple layers of tubular fabrics; the tubular fabric is woven by a knitting machine; the inner adhesive layer 1 and the outer adhesive layer 3 are made of silicon rubber; the tubular fabric is woven by aramid fiber yarns or polyester fiber yarns;
in this embodiment, the reinforcing layer 2 includes a plurality of layers of tubular fabrics, and an extrusion-molded connecting adhesive layer 201 is disposed between two adjacent layers of tubular fabrics. Specifically, in this embodiment, the reinforcement layer 2 is a composite structure including two layers of tubular fabrics, the tubular fabric located on the inner side is woven from aramid fiber yarn, and the tubular fabric located on the outer side is woven from polyester fiber yarn.
In this embodiment, the outer tubular fabric of the reinforcement layer 2 has a smaller weave density than the inner tubular fabric.
In this embodiment, the tubular fabric is woven from a twin wire.
In this embodiment, the thickness of the outer adhesive layer 3 is smaller than that of the inner adhesive layer 1. Specifically, the thickness of the inner glue layer 1 is 2.5mm, and the thickness of the outer glue layer 3 is 1.5 mm.
In this embodiment, the inner adhesive layer 1 is composed of a first inner adhesive layer 101 and a second inner adhesive layer 102 formed by extrusion molding, and the second inner adhesive layer 102 is wrapped outside the first inner adhesive layer 101.
In this embodiment, the thickness of the first inner glue layer 101 is greater than that of the second inner glue layer 102. Specifically, the thickness of the first inner glue layer 101 is 1.5mm, and the thickness of the second inner glue layer is 1 mm.
In this embodiment, the outer adhesive layer 3 is composed of a first outer adhesive layer 301 and a second outer adhesive layer 302 formed by extrusion molding, and the second outer adhesive layer 302 is wrapped outside the first outer adhesive layer 301.
In this embodiment, the thickness of the first outer adhesive layer 301 is greater than the thickness of the second outer adhesive layer 302. Specifically, the thickness of the first outer adhesive layer 301 is 0.8, and the thickness of the second outer adhesive layer is 0.7 mm.
The production process of the special-shaped silicone tube on the production line of the embodiment can be as follows:
firstly, extruding and molding a first inner glue layer 101; extruding and forming a second inner glue layer 102 to coat the first inner glue layer 101 to obtain an inner glue layer 1; thirdly, weaving the tubular fabric positioned on the inner side by using a knitting machine to coat the inner rubber layer 1; fourthly, the connecting glue layer 201 is formed in an extrusion molding mode, and the tubular fabric positioned on the inner side is coated; utilizing a knitting machine to weave the tubular fabric positioned at the outer side to coat the connecting glue layer 201 to obtain an additional layer 2; sixthly, a first outer glue layer 301 is extruded and molded on the outer side of the enhancement layer 2 to coat the enhancement layer 2; seventhly, extruding and forming a second outer rubber layer 302 to coat the first outer rubber layer 301 to obtain an outer rubber layer 3; cutting according to the designed length of the product, bending the product into a curve shape required by the design by using a mould, and vulcanizing to obtain the product.
It should be noted that the special-shaped silicone tube of the present invention is not limited to the shape of the above embodiments, and may be made into other curved shapes. Of course, the utility model discloses a special-shaped silicone tube is also not limited to the parameter setting in the above-mentioned embodiment.
The utility model discloses in, the tubular fabric in the enhancement layer 2 is weavingd by knitting machine and is obtained, and the silicone tube allows the angle of bending to exceed 135, and the silicone tube can have bending angle alpha promptly and reach 135 bending.
The above general description of the invention and the description of its specific embodiments in this application should not be construed as limiting the scope of the invention. Those skilled in the art can add, reduce or combine the technical features disclosed in the general description and/or the specific embodiments (including the examples) to form other technical solutions within the scope of the present application according to the disclosure of the present application without departing from the components of the present invention.
Claims (10)
1. Dysmorphism silicone tube, its characterized in that: comprises an inner glue layer (1), a reinforcing layer (2) and an outer glue layer (3); the reinforcing layer (2) is coated on the outer side of the inner rubber layer (1), the outer rubber layer (3) is coated on the outer side of the reinforcing layer (2), and the inner rubber layer (1), the reinforcing layer (2) and the outer rubber layer (3) are compounded into a whole through vulcanization; the inner rubber layer (1) and the outer rubber layer (3) are of tubular structures formed by extrusion, and the reinforcing layer (2) is of a single-layer tubular fabric or a composite structure containing multiple layers of tubular fabrics; the tubular fabric is woven by a knitting machine; the inner adhesive layer (1) and the outer adhesive layer (3) are made of silicon rubber; the tubular fabric is woven by aramid fiber yarns or polyester fiber yarns.
2. The shaped silicone tube according to claim 1, wherein: the reinforcing layer (2) comprises a plurality of layers of tubular fabrics, and an extrusion-molded connecting glue layer (201) is arranged between every two adjacent layers of tubular fabrics.
3. The shaped silicone tube according to claim 2, wherein: the reinforcement layer (2) is a composite structure comprising two layers of tubular fabrics, the tubular fabric positioned on the inner side is woven by aramid fiber yarns, and the tubular fabric positioned on the outer side is woven by polyester fiber yarns.
4. The shaped silicone tube according to claim 2, wherein: in the reinforcing layer (2), the weaving density of the tubular fabric positioned at the outer side is smaller than that of the tubular fabric positioned at the inner side.
5. The shaped silicone tube according to claim 1, wherein: the tubular fabric is woven from strands.
6. The shaped silicone tube according to any one of claims 1 to 5, wherein: the thickness of the outer glue layer (3) is smaller than that of the inner glue layer (1).
7. The shaped silicone tube according to claim 6, wherein: the inner rubber layer (1) is composed of a first inner rubber layer (101) and a second inner rubber layer (102) which are formed in an extrusion mode, and the second inner rubber layer (102) is wrapped on the outer side of the first inner rubber layer (101).
8. The shaped silicone tube according to claim 7, wherein: the thickness of the first inner glue layer (101) is larger than that of the second inner glue layer (102).
9. The shaped silicone tube according to claim 6, wherein: the outer adhesive layer (3) is composed of a first outer adhesive layer (301) and a second outer adhesive layer (302) which are formed in an extrusion mode, and the second outer adhesive layer (302) is wrapped on the outer side of the first outer adhesive layer (301).
10. The shaped silicone tube according to claim 9, wherein: the thickness of the first outer glue layer (301) is larger than that of the second outer glue layer (302).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121251403.5U CN214789543U (en) | 2021-06-04 | 2021-06-04 | Special-shaped silicone tube |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121251403.5U CN214789543U (en) | 2021-06-04 | 2021-06-04 | Special-shaped silicone tube |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214789543U true CN214789543U (en) | 2021-11-19 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121251403.5U Active CN214789543U (en) | 2021-06-04 | 2021-06-04 | Special-shaped silicone tube |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214789543U (en) |
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2021
- 2021-06-04 CN CN202121251403.5U patent/CN214789543U/en active Active
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